• Shimano Ultegra 6800 Bottom Bracket

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        • $16.99 16.99
        • RRP $37.35
        • Save 55%
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Shimano Ultegra 6800 Bottom Bracket

Shaving 14 grams off the earlier 6700 series bottom bracket, Shimano's Ultegra 6800 bottom bracket is smaller and has minimal bearing interface for enhanced durability with a smooth rolling operation.


  • HollowTech II integrated bottom bracket uses a wider bearing placement and larger axle diameter for increased stiffness and efficiency
  • HollowTech II integrated bottom bracket seal design has minimal bearing interface ensuring smooth rolling and increased durability
  • Use the TLFC37 or TLFC25 spanner adaptor tool in conjunction with the TLFC36 Standard Shimano BB Spanner for installation and removal
  • Compatible with all Shimano Hollowtech II road cranks
  • New sealing system reduced drag by 50%
  • Note: TLFC37 or TLFC25 spanner adaptors are not included


  • Material: Aluminium (Cups); Steel (Bearings)
  • Recommended Use: Road cycling and racing
  • Shell Type: Extrernal
  • Thread: English/Italian
  • Shell Width: 68mm (Eng)/70mm (Ita)
  • Weight: 77g

A 2-year warranty is offered with all Shimano products from Chain Reaction Cycles (3 years on Dura-Ace and XTR products).

Buy Shimano Components from Chain Reaction Cycles, the World’s Largest Online Bike Store.

  • Delivery cost $9.99
  • Delivery toUSA
  • 365 Days return or exchange

    If you're not completely satisfied with an item you may return it within 12 months of purchase. We'll give you a full refund if the item hasn't been used or the component hasn’t been fitted.

    More information on returns
  • Pay by PayPal, Bank Transfer or Card


  • Colour: Black
  • Size: 68mm, 70mm
  • Option: English Thread, Italian Thread

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Bottom Brackets Buying Guide

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